Embedded Software Engineer

Salary: £28,000 - 36,000 per year

Requirements:

• 8+ years of experience in embedded software engineering.
• Strong proficiency in embedded C++ (C++11/14/17).
• Experience developing embedded software for communications or signalling systems, such as modems, radios, or data links.
• Familiarity with embedded debugging, performance optimisation, and hardware-software interaction.
• Understanding of secure coding practices, configuration management, and development governance.
• Experience with requirements traceability, verification, and system-level testing.
• Strong communication skills for cross-discipline collaboration.
• Ability to work rigorously in regulated environments, with a proactive, detail-oriented problem-solving approach.
• Bachelors or Masters degree in Software Engineering, Computer Science, or a related discipline, or a relevant technical military background with equivalent experience.
• Must be eligible to hold or already hold UK SC Security Clearance.
• Desirable: experience with Linux kernel drivers; communication stacks, DSP concepts, or RF-adjacent technologies; embedded Linux or RTOS environments; CI/CD tooling, model-based design, or static analysis tools; or defence, avionics, or secure-systems engineering.

Responsibilities:

• Design, implement, and maintain embedded C++ software for real-time communication and signal-processing systems.
• Develop and support software for embedded communication modules, modems, and RF-adjacent components.
• Debug, optimise, and performance-test software across embedded targets to ensure reliability under operational loads.
• Produce clear, traceable design specifications, requirements, and documentation in line with regulated development practices.
• Follow secure coding standards, governance policies, and safety-critical development procedures.
• Support integration with wider engineering teams and contribute to architecture and design reviews.

Technologies:

• CI/CD
• Embedded
• Hardware
• Support
• Linux
• Security
• C++

More:

We are ALTEN, a global engineering and technology consultancy operating in more than 35 countries. We partner with industry leaders across sectors including aeronautics, aerospace, defence, naval, automotive, energy, rail, and IT to deliver engineering solutions that support technological advancement and sustainable transformation. In this role, youll develop embedded C++ software for high-reliability communication and information-exchange systems used in defence environments, contributing to communication and signal-processing technologies for secure, mission-critical operations. The role is based in Crawley, with on-site work four days per week, and candidates must be willing and eligible to obtain SC clearance. We offer learning, mentoring, career development, a personalised career path, varied engineering projects, private medical insurance, a cycle and tech scheme, an employee assistance programme, life insurance, a pension scheme, social events and team building, and flexible working where the role allows. We support the Armed Forces Covenant and welcome applications from members of the Armed Forces community. We are committed to a diverse and inclusive workplace and can make reasonable adjustments during recruitment.

last updated 40 week of 2026